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Product Detailed Parameters
- Description：CMC 20MH 500MA 2LN THROUGH HOLE
- Series：C201021A
- Mfr：ITG Electronics, Inc.
- Package：Bulk
- Filter Type：Power Line
- Number of Lines：2
- Current Rating (Max)：500mA
- DC Resistance (DCR) (Max)：540mOhm
- Voltage Rating - DC：-
- Voltage Rating - AC：250V
- Operating Temperature：-40°C ~ 125°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Through Hole
- Size / Dimension：0.689" L x 0.512" W (17.50mm x 13.00mm)
- Height (Max)：0.866" (22.00mm)
- Package / Case：Vertical, 4 PC Pin
- Inductance @ Frequency：20 mH @ 10 kHz
- Impedance @ Frequency：-
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Overview
The C201021A-203NHF is a common mode choke manufactured by ITG Electronics, Inc., designed for through-hole mounting. It features a two-line configuration with an inductance of 20 mH measured at 10 kHz. The component supports a maximum current rating of 500 mA and exhibits a DC resistance of 540 milliohms. It operates within a temperature range of -40°C to +125°C and has an AC voltage rating of 250V. Physical dimensions are 17.50mm in length and 12.99mm in width.
Feature Summary
- Two-line common mode choke design for differential noise suppression
- Through-hole mounting construction for secure PCB attachment
- RoHS and halogen-free compliant manufacturing
Applications
- LED lighting circuits
- General electronic signal filtering
- Power supply input stages
Procurement Notes
Verify the specific part number suffix against official ITG Electronics documentation to ensure correct inductance and current ratings. Confirm RoHS compliance status directly with the manufacturer or authorized distributor, as regulatory status can vary by production batch. Ensure the selected component meets the required thermal operating range for the intended application environment.
Selection Notes
Select this component when a 20 mH inductance at 10 kHz is required for common mode noise reduction in low-current applications. The 500 mA current rating dictates suitability for small signal or LED driver circuits rather than high-power mains lines. Verify that the through-hole package fits the available PCB footprint and that the 250V AC rating exceeds the circuit's peak voltage requirements.
Part Context
This component belongs to the C201021A series from ITG Electronics, which includes various inductance values such as 10 uH and 20 mH options. The series is characterized by its through-hole DIP style construction and wide operating temperature range. It is distinct from surface mount variants or different series like the C301313A, which may share similar form factors but differ in electrical specifications.
Replacement Considerations
Direct substitutes must match the 20 mH @ 10 kHz specification, 500 mA current rating, and 540 mOhm DCR. Verify physical compatibility with the existing through-hole footprint. Cross-reference with other ITG Electronics series if exact pinouts differ.
